题目内容
17.Because of Tom's bad habits,he ________ to clean the classroom for a week.( )| A. | asks | B. | asked | C. | is asked | D. | can ask |
分析 由于汤姆的坏习惯,他被要求打扫教室一周.
解答 答案:C.根据题干可知,主语he是动作ask的承受者,和动词构成被动的关系,应该用被动语态,表示"被要求".被动语态的结构是"be+过去分词";根据句意可知,是说现在被要求打扫教室,应该用一般现在时.一般现在时态的被动语态的构成:am/is/are+及物动词的过去分词;he是第三人称单数,应用is.故选C.
点评 主要考查被动语态,当句子的主语是动作的承受者时,应该用被动语态,本题考查的是一般现在时态的被动语态.一定要注意:一般现在时态的被动语态的构成:am/is/are+及物动词的过去分词,以及动词过去分词的形式.
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